// Copyright (C) 2020 Rick Waldron. All rights reserved. // This code is governed by the BSD license found in the LICENSE file. /*--- esid: sec-ecmascript-standard-built-in-objects description: > String.prototype.toLowerCase does not implement [[Construct]], is not new-able info: | ECMAScript Function Objects Built-in function objects that are not identified as constructors do not implement the [[Construct]] internal method unless otherwise specified in the description of a particular function. sec-evaluatenew ... 7. If IsConstructor(constructor) is false, throw a TypeError exception. ... includes: [isConstructor.js] features: [Reflect.construct, arrow-function] ---*/ assert.sameValue( isConstructor(String.prototype.toLowerCase), false, 'isConstructor(String.prototype.toLowerCase) must return false' ); assert.throws(TypeError, () => { new String.prototype.toLowerCase(); }, '`new String.prototype.toLowerCase()` throws TypeError'); reportCompare(0, 0);